Figure 10
From: Dynamic behavior of suture-anastomosed arteries and implications to vascular surgery operations
Schematic correlation of PHZ phenomenon to the stiffness of the arterial tissue. (a) Compliance of the anastomotic region. The PHZ phenomenon (region 2) exists in the case of continuous stitches, as was concluded by Hasson et al. [11]. Away from the anastomosis zone the compliance is constant (region 1), (b) Circumferential stress-longitudinal strain relationship of a nonlinear hyperelastic material. In the case of continuous stitching, the longitudinal stretch is lower than that of the discrete stitching. This results to a lower tangential modulus (E θ1 > E θ2), implying a higher compliance at the PHZ.